8. Glossary

Accept

Accept the proposed outstanding Ordnance Survey MasterMap update for the current INCID. Once accepted, the update will be ‘Pending’ and must then be applied. See Review OSMM Updates Window for more information.

Apply

Commits any changes made by the user to all of the features for the current INCID in the active feature when in the main window. See Main Window for more details.

Boundary Importance

The relative importance of each source when determining the boundary location of all the features in an INCID (e.g. of ‘Primary’ or ‘Secondary’ importance).

Bulk Update

Enables updates to the attributes for multiple selected INCIDs simultaneously. See Bulk Update Window and Bulk Updates for more details.

Change Flag

For outstanding Ordnance Survey MasterMap updates this indicates whether the proposed habitat category (e.g. ‘WB’) is the same as the original habitat category and whether it is a higher or lower level in the habitat hierarchy. See OSMM Updates Section for more details.

Determination Quality

Categorises the accuracy with which a priority habitat has been determined (e.g. ‘Definitely is the priority habitat’). See Determination Quality for more details.

Export

Combines spatial data for the selected features from GIS with the associated attribute data from the database into a single new GIS layer based upon a pre-defined export format. See Export Window and Exports for more details.

Fragment ID

An incremental number used as a unique reference to individual features (fragments) of a single TOID. See Habitat Framework for more details.

Habitat Class

One of the habitat classification systems used in the UK to record or describe an area of habitat (e.g. ‘Phase 1’, ‘NVC’, ‘BAP Priority’).

Habitat Importance

The relative importance of each source when determining the IHS habitat and associated IHS codes for all the features in an INCID (e.g. of ‘Primary’ or ‘Secondary’ importance).

Habitat Type

The code and/or descriptive term of a habitat classification system that best represents an area of habitat (e.g. ‘B312’, ‘CG2’, ‘Lowland Calcareous Grassland’).

IHS

Integrated Habitat System - a hierarchical integration of existing habitat and land use classifications used in the UK. IHS was devised by the Somerset Environmental Records Centre.

INCID

An INCremental IDentifier used as a unique reference to a logical group of one or more features. See INCremental IDentifier (INCID) for more details.

Interpretation Comment

A free text field to explain or provide additional reasoning behind the priority habitat determination and interpretation.

Interpretation Quality

A combination of the assessment of the quality and age of the original source habitat identification and the relationship between the original habitat type and the priority habitat type. See Interpretation Quality for more details.

Legacy Habitat

A code and/or descriptive term that best represents an area of habitat using an alternative (legacy) habitat classification system (e.g. ‘B312’, ‘CG2’, ‘Lowland Calcareous Grassland’).

Logical Merge

Combines all the attributes for the features selected in the GIS into a single INCID record of one of the selected features. See Logical Merge for more details.

Logical Split

Creates a single new INCID record in the database for the features selected from an existing INCID in the GIS layer. See Logical Split for more details.

Merge Feature

The tool can perform two types of merge, Logical Merge or Physical Merge, depending upon the filter active in the tool. See Merging Features for more details.

Multiplex Code

Matrix, Formation, Management and Complex codes (known collectively as ‘Multiplex’ codes) can be recorded alongside an IHS Habitat code to refine the habitat definition for an INCID.

OSMM Update

An outstanding proposed update based on recent OS MasterMap external processing. See OSMM Updates for more details.

Physical Split

Creates one or more new TOID fragments in the database based upon a single TOID which has been split in the GIS layer. See Physical Split for more details.

Physical Merge

Combines two or more fragments of a single TOID into a single, larger, feature in the GIS layer. See Physical Merge for more details.

Potential Priority Habitat

Habitat areas that are close to, but do not currently meet, priority habitat definitions but may do with appropriate management or following habitat restoration work.

Priority Habitat

Habitats identified as requiring action in the UK Biodiversity Action Plan (UK BAP) and continue to be regarded as conservation priorities in the UK Post-2010 Biodiversity Framework.

Process

The activity being undertaken that has lead to applying this change to the spatial or attribute data of the current INCID. See Reason/Process Section for more details.

Process Flag

For outstanding Ordnance Survey updates this represents the type of change in the IHS habitat class from the original incid feature to the new incid feature, as well as the number of sources assigned to the original incid feature. See OSMM Updates Section for more details.

Reason

The underlying explanation for the change in habitat or land use. See Reason/Process Section for more details.

Reject

Reject the proposed outstanding Ordnance Survey MasterMap update for the current INCID. See Review OSMM Updates Window for more information.

Source

A dataset, document or reference used as the source of habitat or land use information. Up to three sources can be defined for each INCID. See Sources Tab for more details.

Spatial Flag

For outstanding Ordnance Survey MasterMap updates this indicates whether part of the new feature has been changed compared to the original framework, with An ‘X’ denotes when a new feature overlaps two or more features in the original framework and hence a portion of the new feature may now be assigned to a different INCID than it was originally. See OSMM Updates Section for more details.

Split Feature

The tool can perform two types of split, Logical Split or Physical Split, depending upon the features selected. See Splitting Features for more details.

TOID

A unique TO pographical IDentifier applied to features in Ordnance Survey’s MasterMap product. See Habitat Framework for more details.

Vague Date

A specific date, range of dates or imprecise date that can be specified in a variety of formats (e.g. ‘23 Mar 1987’, ‘Mar 1987 - Jun 1987’, ‘Spring 1987’).